Question

to the right of z= -1.89

Answer 1

$$P(Z>-1.89)=1-P(Z\leq-1.89)$$

$$\approx1-0.0293790\approx0.970621$$

By the symmetry of the bell curve, finding the area to the right of a negative 

z-score is equivalent to the area to the left of the corresponding positive 

z-score.

$$P(Z>-1.89)=P(Z<1.89)$$

$$\approx0.970621$$

$P(Z>-1.89)=0.970621$